Odpowiedź :
4-25) dzielone na 2
-21 dzielone na dwa
-10,5
-10,4-4= -14,5
x+1 =-14,5
x= -15,5
-21 dzielone na dwa
-10,5
-10,4-4= -14,5
x+1 =-14,5
x= -15,5
-4, x+1, -25
(x+1)/(-4) = -25/(x+1)
(x+1)^2 = 100
x^2+2x+1-100=0
x^2+2x-99=0
delta = 4+99*4
delta = 400
pierw z delty = 20
x1 = (-2-20)/2 = -11
x2 = (-2+20)/2 = 9
chyba tak...
(x+1)/(-4) = -25/(x+1)
(x+1)^2 = 100
x^2+2x+1-100=0
x^2+2x-99=0
delta = 4+99*4
delta = 400
pierw z delty = 20
x1 = (-2-20)/2 = -11
x2 = (-2+20)/2 = 9
chyba tak...
